Many thanks for your reply  all your suggestions..
...its just taken a bit of time knowing in which JSM a particular function is located

For example, I was trying to find "helper" functions used in test_subprocess(), functions such as do_get_workdir() and do_print(),
but it seems that  you have to search the entire source of hg.

"Jonathan Protzenko" <jonathan.protze...@gmail.com> wrote in message news:mailman.6025.1357487145.32706.dev-platf...@lists.mozilla.org...
On Sun 06 Jan 2013 03:49:46 PM CET, rvj wrote:
Yes thanks .....

Thats where I started before getting sidetracked looking for
test functions in the Mercurial source ...something which I am just
finding my around
https://github.com/protz/gpgfox/blob/0d2fb7c0e207c8a76def0d87b0888b759b2f6ffe/lib/gpg.js#L100
has an example of how to use the subprocess.call function, assuming
you've properly done the Components.utils.import(...) call. But all of
those requirements are properly detailed at
http://hg.mozilla.org/ipccode/file/b3725e9efa10/modules/subprocess.jsm#l39
and the library is really easy to use. Maybe what you're missing is
some background on what a JSM is. If that is the case, I suggest
https://developer.mozilla.org/en-US/docs/Mozilla/JavaScript_code_modules
as a starting point.

PS  do you understand the reference to compilation of tests?
The tests for the library itself need to simulate calling a binary
process. Therefore, there is a little bit of compilation involved, but
that is not relevant to what you need to do as a client of the library.

Hope that helps,

jonathan

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